| Gap to Smolyan | 959.84 mi (1,544.71 km) |
| Gap to Sofia | 870.59 mi (1,401.07 km) |
| Gap to Sopot | 941.31 mi (1,514.90 km) |
| Gap to Sozopol | 1,090.64 mi (1,755.22 km) |
| Gap to Sredets | 1,067.24 mi (1,717.56 km) |
| Gap to Stamboliyski | 940.18 mi (1,513.08 km) |
| Gap to Stara Zagora | 989.43 mi (1,592.34 km) |
| Gap to Svilengrad | 1,029.49 mi (1,656.81 km) |
| Gap to Svishtov | 956.38 mi (1,539.15 km) |
| Gap to Targovishte | 1,022.04 mi (1,644.82 km) |
| Gap to Teteven | 913.09 mi (1,469.48 km) |
| Gap to Troyan | 935.78 mi (1,505.99 km) |
| Gap to Tryavna | 974.61 mi (1,568.48 km) |
| Gap to Tutrakan | 1,013.45 mi (1,630.99 km) |
| Gap to Varna | 1,088.12 mi (1,751.15 km) |
